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#ifndef __history_array__
#define __history_array__
enum EventLoadMode
{
ELM_NOTHING,
ELM_INFO,
ELM_DATA
};
enum
{
HIF_SELECTED = 0x01,
FILTER_TIME = 0x01,
FILTER_TYPE = 0x02,
FILTER_DIRECTION = 0x04,
FILTER_TEXT = 0x08,
FILTER_UNICODE = 0x10,
FTYPE_MESSAGE = 0x01,
FTYPE_FILE = 0x02,
FTYPE_URL = 0x04,
FTYPE_STATUS = 0x08,
FTYPE_OTHER = 0x10,
FTYPE_INCOMING = 0x20,
FTYPE_OUTGOING = 0x40
};
class HistoryArray
{
public:
struct ItemData
{
BYTE flags = 0;
MCONTACT hContact = 0;
MEVENT hEvent = 0;
bool dbeOk = false;
DBEVENTINFO dbe;
bool atext_del = false, wtext_del = false;
char *atext = 0;
WCHAR *wtext = 0;
HANDLE data = 0;
ItemData() { memset(&dbe, 0, sizeof(dbe)); }
~ItemData();
bool load(EventLoadMode mode);
inline bool loadInline(EventLoadMode mode)
{
if (((mode >= ELM_INFO) && !dbeOk) || ((mode == ELM_DATA) && !dbe.pBlob))
return load(mode);
return true;
}
inline TCHAR *getTBuf()
{
loadInline(ELM_DATA);
#ifdef UNICODE
return wtext;
#else
return atext;
#endif
}
inline char *getBuf()
{
loadInline(ELM_DATA);
return atext;
}
inline WCHAR *getWBuf()
{
loadInline(ELM_DATA);
return wtext;
}
};
struct ItemBlock
{
ItemData *items;
int count;
ItemBlock *prev, *next;
};
class Filter
{
public:
enum
{
INCOMING = 0x001,
OUTGOING = 0x002,
MESSAGES = 0x004,
FILES = 0x008,
STATUS = 0x020,
OTHER = 0x040,
EVENTTEXT = 0x080,
EVENTONLY = 0x100,
};
Filter(WORD aFlags, TCHAR *aText)
{
refCount = new int(0);
flags = aFlags;
text = new TCHAR[lstrlen(aText) + 1];
lstrcpy(text, aText);
}
Filter(const Filter &other)
{
flags = other.flags;
refCount = other.refCount;
text = other.text;
++*refCount;
}
Filter &operator=(const Filter &other)
{
flags = other.flags;
refCount = other.refCount;
text = other.text;
++*refCount;
}
~Filter()
{
if (!--*refCount) {
delete refCount;
if (text) delete[] text;
}
}
inline bool check(ItemData *item)
{
if (!item) return false;
if (!(flags & EVENTONLY)) {
if (item->dbe.flags & DBEF_SENT) {
if (!(flags & OUTGOING))
return false;
}
else {
if (!(flags & INCOMING))
return false;
}
switch (item->dbe.eventType) {
case EVENTTYPE_MESSAGE:
if (!(flags & MESSAGES))
return false;
break;
case EVENTTYPE_FILE:
if (!(flags & FILES))
return false;
break;
case EVENTTYPE_STATUSCHANGE:
if (!(flags & STATUS))
return false;
break;
default:
if (!(flags & OTHER))
return false;
}
}
if (flags & (EVENTTEXT | EVENTONLY)) {
item->loadInline(ELM_DATA);
return CheckFilter(item->getTBuf(), text);
}
return true;
};
private:
WORD flags;
int *refCount;
TCHAR *text;
};
private:
ItemBlock *head = 0, *tail = 0;
ItemBlock *preBlock = 0;
int preIndex = 0;
bool allocateBlock(int count);
public:
HistoryArray();
~HistoryArray();
void clear();
bool addHistory(MCONTACT hContact, EventLoadMode mode = ELM_NOTHING);
bool addEvent(MCONTACT hContact, MEVENT hEvent, EventLoadMode mode = ELM_NOTHING);
// bool preloadEvents(int count = 10);
ItemData *get(int id, EventLoadMode mode = ELM_NOTHING);
ItemData *operator[] (int id) { return get(id, ELM_DATA); }
ItemData *operator() (int id) { return get(id, ELM_INFO); }
int FindRel(int id, int dir, Filter filter)
{
int count = getCount();
for (int i = id + dir; (i >= 0) && (i < count); i += dir)
if (filter.check(get(i)))
return i;
return -1;
}
int FindNext(int id, Filter filter) { return FindRel(id, +1, filter); }
int FindPrev(int id, Filter filter) { return FindRel(id, -1, filter); }
int getCount()
{
int res = 0;
for (ItemBlock *p = head; p; p = p->next)
res += p->count;
return res;
}
};
#endif // __history_array__
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